Matcher-head.



No. 633,452. Patented Sept. l9, I899. C. R. HARVIN.

MATCHER HEAD. (Application med F 'eb. '2, 1899.)

(No Model.)

W/ TN E SSE S outyq. WASHINGTON, o c

UNITED STATES PATENT OFFIQE.

CHARLES R. IIARVIN, OF MANNING, SOUTH CAROLINA.

MATCHER-HEAD.

SPEGIFICATIONfoI-ming part of Letters Patent No. 633,452, datedSeptember 19, 1899.

Application filed February 2, 1899. Serial No. 704,289. (No modelfl Toall whom it may concern:

Be it known that 1, CHARLES R. HARVIN, of Manning, in the county ofClarendon and State of South Carolina, have invented a new and ImprovedMatcher-Head, of which the following is a full, clear, and exactdescription.

This invention relates to improvements in matcher-heads forplaning-mills; and the objcct is to provide a simple means whereby thecutters or bits may be vertically adjusted to adapt the device todifferent widths of tongues or grooves, and, further, to provide asimple means to prevent the cutters or bits from slipping backward whenthe device is in use.

I will describe a matcher-head embodying my invention and then pointout'the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a top plan view and partial section, with one of the cuttersor bits removed, of a matcher-head embodying my invention. Fig. 2 is asection on the line 2 2 of Fig. 1. Fig. 3 is abottom plan View of aportion of the device, showing an adjusting mechanism employed; and Fig.4 is an inner face view of one of the cutters or bits.

Referring to the drawings, 1 designates the cutter head orcarrier,having on its under side diametrically opposite depressions orseats 2 3 to receive the bottom cutters or bits 4 5, and on its upperside ithas diametrically opposite seats 6 7 to receive the upper cuttersorbits S 9.

In devices of this character it is not usual to adjust vertically thebottom cutters or bits. The upper cutters or bits, however, are to beadjusted vertically to adapt the device to different thicknesses offloor-boarding or to the different widths of tongues or grooves to beformed. I will therefore describe the means for adjusting the uppercutters or bits.

Each upper cu tteror bit has a central opening 10, through which theround portion of a bolt 11 passes, the head of the bolt bearing upon theupper side of the cutter or bit. The under side of the cutter or bit hasan annular depression 12, at one side of which is a tooth 13, adapted toengage in either one of a, series of notches 1 L, formed in the upperend of an exteriorly-threaded sleeve 15, engaging in a tapped openingformed through the head 1. The bolt 11 has a portion of its lengthangular in cross-section, and this portion passes through acorrespondingly-shaped opening in the sleeve 15 and also through acorrespondinglyshaped opening in a washer or locking device 17, and theend which projects beyond the washer 17 is provided with a screw-threadengaged by a nut'lS. The washer 17 is provided on its periphery with aseries of notches 19, with either one of which a lug 20 on the underside of the cutter-head may be engaged.

In adjusting an upper cutter the nut 18 is to be loosened sufficientl yto allow the washer 17 to drop downward clear of the lug 20, so that byengaging the said washer with a suitable tool it may be rotated, andthis movement of the washer will rotate the bolt 11, and consequentlyrotate the sleeve 15 in a direction to raise or lower it, as desired.After adjustment vertically the cutter is to be raised to clear itstooth 13 from the notch 14, in which it is engaged, so that saidcutter-head may be rotated to bring its cutter portion outside of thecutter-head, as indicated in Fig. 1. When in this position, the cutteror bit is to be lowered to engage its tooth 13 in. a notch 14. Then thewasher 17 is to be moved to 'engage the lug 20 in one of its notches 19,after which the device may be tightened by screwing up the nut 18.

The bottom cutters 0r bits have a tooth 13 on their inner faces, asbefore described, and adapted to engage any one of a series of notchesformed in a boss 21, provided on the under side of the cutter head orcarrier, so as to hold the cutter or bit as rotat-ively adjusted. Thebottom cutter or bit is clamped in position by means of a bolt 22,having a portion angular in cross-section and engaging in acorrespondingly-shaped opening in the'cutterhead, and a nut 23 isprovided on the outer end of the said bolt.

It will be seen by my improvement that the upper cutters or bits may bequickly and readily adjusted, both vertically and rotatively, withoutwholly removing them from the cutter head or carrier.

- Having thus described my invention, I claim as new and desire tosecure by Letters Patent 1. In a watcher-head, a head or carrier, acutter or bit carried thereby, a sleeve adjustable in the head orcarrier and having a notched end to receive a tooth on the cutter orhit, a bolt passing through said cutter or bit and having a portionangular in crosssection passing through a correspondinglyshaped openingin the adjusting-sleeve, and a locking device for said bolt,substantially as specified.

2. The combination with a head or carrier, of a cutter or bit having adepression in its inner face and a tooth at one side thereof, a sleeveadjustable in said head or carrier and having a series of notches on itsend to receive said tooth, a bolt passing through the cutter or hit andhaving a portion angularin crosssection passing through acorrespondinglyto engage in any one of a series of notches formed in aboss on the head or carrier, a clamping-bolt havinga cylindrical portionfor engaging in a correspondingly-shaped opening in the cutter or hit,and an angular portion for engaging in a correspondingly-shaped openingin the head or carrier, substantially as specified.

CHARLES R. HARVIN. Vitnesses:

F. O. RICHARDSON, .JosEPH SPROTT.

